How to use with in Query Builder in laravel - laravel

I am trying to fetch data using slug between 2 table,
When I am using Eloquent then everything is fine but How to convert that query in Query Builder.
Eloquent Query :
$results = Product::orderBy('id','desc')->with('categories')->whereHas('categories', function ($query){
$query->where('slug', request()->sub_category);
})->paginate(24);
Here I am using two tables product and categories.
Query Builder :
$results = DB::table('products')
->leftJoin('wishlists', 'products.product_id', '=', 'wishlists.product_id')
->select('products.*', 'wishlists.wishlist_id', 'wishlists.user_id')
->with('menus')
->whereHas('categories', function ($query){
$query->where('slug', request()->category);
})
->orderBy('products.name', 'asc')
->paginate(24);
But here I am using 3 tables, Product, menu and Wishlist. Bcoz when user go to product page, I will highlight wishlisted product too.
Error :
Call to undefined method Illuminate\Database\Query\Builder::with()

You can use multiple with eloquent too,
try this
$results = Product::orderBy('id','desc')->with(['menus','categories' => function ($query){
$query->where('slug', request()->sub_category);
}])->paginate(24);

Related

How to fix Laravel eager whereHas returning column not found

Let's say I have Account and Product models. And I need to get all accounts with favorite products. $alert is boolean to get products with stock alerts. (just an example)
I want to get all accounts having at least one favorite product with alert and all their other favorite products. I am doing this:
...
$query = Account::where('active', true)->when($alert, function ($query) {
$query
->whereHas('products', function($query) {
$this->getThosesWithAlerts($query);
});
});
...
// get $query and make pagination...
I get column not found Account.id in my function "getThosesWithAlerts". I use this function in another query and it works perfectly.
When I use "with" only like:
...
$query = Account::where('active', true)->when($alert, function ($query) {
$query
->with(['products' => function($query) {
$this->getThosesWithAlerts($query);
}]);
});
...
// get $query and make pagination...
I have no error: I have accounts with only products with stock alert (not all); the pagination is broken, so it seems $query is not good for my pagination which works also for another query. It is global pagination for all projetcs queries.
What I want is all products of accounts for accounts having at least one product in alert. Adding with to whereHas in my initial request does not change anything to my error. Unknown column or not found column account.id. So whereHas is my issue but I need it.
...
$query = Account::where('active', true)->when($alert, function ($query) {
$query
->with('products')
->whereHas('products', function($query) {
$this->getThosesWithAlerts($query);
})
});
...
// get $query and make pagination...
what is wrong with whereHas and how to fix it?

How do I search by a table included using with() statement

I am trying to search with a column on a connected table using with. According to laravel the following should work.
$lineItems = Invoice::with(['invoiceHeader' => function ($query) {
$query->where('community_id', '=', 1);
}, 'invoiceLineItems'])
->limit(10)
->get()
->toArray();
However, I don't get anything from the invoiceHeader table and I get all the invoices available. If I take out the function I get the same but with invoiceHeader's table values showing up.
$lineItems = Invoice::with(['invoiceHeader', 'invoiceLineItems'])
->limit(10)
->get()
->toArray();
It seems I might be doing something of a right join where I get all the Invoices but then only the invoiceHeader values when applicable to the foreign key.
Edit:
I put ->toSql(); after the limit() and it shows I only get the following.
"select * from `invoice` limit 10"
You should use whereHas mixing with with:
$lineItems = Invoice::with(['invoiceHeader', 'invoiceLineItems'])
->whereHas('invoiceHeader', function ($query) {
return $query->where('community_id', 1);
})
->limit(10)
->get()
->toArray();

Product filtering problems with Laravel Query Builder

I try to implement ajax based filtering in my ecommerce project homepage for searching a product. I am using Laravel Query Builder. My Query for filtering products is given below-
$result= DB::table('products')
->leftjoin('products_description','products.products_id','products_description.products_id')
->leftjoin('image_categories', 'products.products_image', '=', 'image_categories.image_id')
->leftjoin('products_to_categories','products.products_id','products_to_categories.products_id')
->leftjoin('categories','products_to_categories.categories_id','categories.categories_id')
->when($category_slug, function($q) use ($category_slug) {
return $q->where('categories.categories_slug', $category_slug);
})
->where('products_name','like',"%{$querval}%")
->where('image_categories.image_type','=','ACTUAL')
->orderby('products.products_id','DESC')
->take(5)
->get();
I get every product twice in search result. don't know why. A sample response is given in this picture.
Can anyone help me to optimize my query for getting the desired result?
join with categories table only when you have to.
and select your columns strictly. then group by selected columns.
$result= DB::table('products')
->leftjoin('products_description','products.products_id','products_description.products_id')
->leftjoin('image_categories', 'products.products_image', '=', 'image_categories.image_id')
->when($category_slug, function($q) use ($category_slug) {
return $q->leftjoin('products_to_categories','products.products_id','products_to_categories.products_id')
->leftjoin('categories','products_to_categories.categories_id','categories.categories_id')
->where('categories.categories_slug', $category_slug);
})
->where('products_name','like',"%{$querval}%")
->where('image_categories.image_type','=','ACTUAL')
->orderby('products.products_id','DESC')
->select(['products_name','products.id','image_path'])
->groupBy(['products_name','products.id','image_path'])
->take(5)
->get();
you can use from groupBy to avoid comming repeated data.
try this one:
$result= DB::table('products')
->leftjoin('products_description','products.products_id','products_description.products_id')
->leftjoin('image_categories', 'products.products_image', '=', 'image_categories.image_id')
->when($category_slug, function($q) use ($category_slug) {
return $q->where('categories.categories_slug', $category_slug);
})
->where('products_name','like',"%{$querval}%")
->where('image_categories.image_type','=','ACTUAL')
->orderby('products.products_id','DESC')
->groupBy('products_name','products.products_id')
->take(5)
->get();

Trouble converting an SQL query to Eloquent

Trying to get this query to work in eloquent
A user can be in multiple teams however I want to generate a list of users NOT in a specific team. The following SQL query works if executed directly but would like to make it cleaner by converting it to eloquent
SELECT * FROM users LEFT JOIN team_members ON team_members.member_id = users.id WHERE NOT EXISTS ( SELECT * FROM team_members WHERE team_members.member_id = users.id AND team_members.team_id = $team_id )
This should provide a list of all the users that are not members of team $team_id
This is a guess ad you do not give much info on your Eloqent models but here is a hint of where to go:
User::doesnthave('teamMembers', function($builder) use($team_id){
return $builder->where('team_members.team_id');
});
That is assuming you have a "User" model with a "teamMembers" relationship setup on it
You may have a closer look in the Laravel docs for doesntHave
Laravel 5.8
Let's assume you have model name "User.php"
& there is method name "teamMembers" in it.
Basic
$users = User::doesntHave('teamMembers')->get();
Advance
use Illuminate\Database\Eloquent\Builder;
$users = User::whereDoesntHave('teamMembers', function (Builder $query) {
$query->where('id', '=', {your_value});
})->get();
You can find details description in this link >>
https://laravel.com/docs/5.8/eloquent-relationships#querying-relationship-absence
Laravel 5.2
Example:
DB::table('users')
->whereExists(function ($query) {
$query->select(DB::raw(1))
->from('orders')
->whereRaw('orders.user_id = users.id');
})
->get();
Check this link for advance where clause:
https://laravel.com/docs/5.2/queries#advanced-where-clauses
You can use below example
$list = User::leftJoin('users', 'users.id', '=', 'team_members.member_id')
->whereNotExists(function ($query) use ($team_id) {
$query->from('team_members')
->whereRaw('team_members.member_id = users.id')
->where('team_members.team_id', '=', $team_id);
})
->get();

october cms (laravel) where query

I have a some problem with filter query. I need to do somethink like
select painting from artist_painting where type=$_GET['type'] AND material=$_GET['material'] and artist_slug =$_GET['artist_slug'] ORDER BY painting DESC
I have a pivot table artist_painting and artist. 'artist_slug' is in the 'artist' table
I do
$this['painting'] = Painting::whereHas('artist', function($q)
{
$q->where('artist_slug', '=', $this->param('slug'));
})->get();
but I do not know what to do next.
How can i do query in php code?
Short and dirty:
Painting::where('type',input("type"))
->where('material',input("material"))
->whereHas('artist', function($q)
{
$q->where('artist_slug', '=', $this->param('slug'));
})->get();
The explanation:
When you initialize a query a query builder instance is returned. Basically all methods on the query builder return the same instance so you can daisy chain them into one query.
But you can also just work on the query builder.
$query = Painting::where('type',input("type"));
or:
$query = $model->newQuery()// Where model is an intance of painting, for example new Painting();
Then you can just work on the query builder instance, pass it to other methods that might to do things.
function getPaintings($type, $material, $slug)
{
$query = Painting::where('type',$type);
$query->where('material', $material);
$this->findArtistBySlug($query, $slug);
return $query->get()
}
function findArtistBySlug($query, $slug)
{
$query->whereHas('artist', function($q) use ($slug)
{
$q->where('artist_slug', '=', $slug);
});
$query->with(['artist']);
}
You might want to read https://octobercms.com/docs/database/query
and https://laravel.com/docs/5.6/queries
I would solve this problem from the Artist's point of view:
$artist = Artists::where('artist_slug', $this->param('slug'))->with('paintings')->first();
All the paintings of the artist can be accessed by using $artist->paintings, which will be a Collection.

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